nginx 日志切割脚本

#!/bin/bash
LOG_DIR=/opt/logs
LOG_BACK=back
PID=/opt/logs/nginx.pid
DATE=`date +%F`
DEL_DATE=`date +%F -d "15 days ago"`

#check error
check_error(){
    if [[ $1 != "0" ]]
    then
        echo `date +"%F %H:%M:%S" `"$2 error!" >> $LOG_DIR/$LOG_BACK/back_error.log
        exit 1
    else
        echo `date +"%F %H:%M:%S" `"$2 is ok" >> $LOG_DIR/$LOG_BACK/back_error.log
    fi
}

cd $LOG_DIR
check_error $?
mkdir -p back/access
mv access.log back/access/access.log$DATE
kill -USR1 `cat  $PID`
rm -rf back/access/access.log$DEL_DATE